WHOLE ORGAN FREEZING AND THAWING HEAT TRANSFER AND THERMAL PROPERTIES.

Abstract

Numerical freezing solutions were used to predict the transient freezing histories of thin slabs of biological specimens with varying percentages of water content and specimen thickness. From such analyses freezing times and temperature-time gradients were determined as a function of water content. Additional measurement of the heat capacities of bovine tissues were measured at liquid nitrogen, carbon dioxide, and room temperatures. Also, heat capacities of bovine suet and pure protein powder were measured. The heat capacities of bovine brain, heart, and liver were predicted from the classical heat capacity equation for mixtures; predicted values were lower than the experimental ones. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1967
Accession Number
AD0659471

Entities

People

  • H. F. Poppendiek
  • H. G. Furgerson
  • N. D. Greene
  • R. Randall

Tags

DTIC Thesaurus Topics

  • Biospecimens
  • Carbon Dioxide
  • Equations
  • Freezing
  • Heat Capacity
  • Heat Energy
  • Heat Transfer
  • Thermal Properties
  • Transition Temperature

Readers

  • Immunology
  • Thermal Physics or Thermal Science.